MANTON CALIFORNIA CONSTRUCTION EXPERT WITNESS
DIRECTORY AND CAPABILITIES

The GKN Aerospace Chemical Release and the Laws Designed to Address It

July 06, 2026 — Sean M. Sherlock - Snell & Wilmer
On May 21, 2026, a 34,000-gallon storage tank at the GKN Aerospace facility in Garden Grove, California began leaking methyl methacrylate (MMA), a volatile and highly flammable industrial chemical used to manufacture high-strength acrylic plastics. GKN Aerospace makes advanced military and commercial transparencies, such as aircraft canopies, windshields, cabin windows, bullet-resistant glass, and spacecraft windows. In polymer chemistry lingo, MMA is known as a monomer. Monomers are like individual links to a chain. Under the right conditions they link up (react) with each other to form long-chained polymers, or plastics. MMA is an unstable monomer that requires controlled storage conditions to avoid setting off a polymerization (chain) reaction. According to early reports, the MMA tank at GKN Aerospace overheated. The cause of the overheating is not yet clear, but the overheating may have created conditions enabling the MMA to initiate polymerization, which in turn generated heat, which in turn generated pressure, activating the tank’s pressure-relief system and releasing MMA vapor into the atmosphere. Concerns about a runaway reaction, massive release, and explosion led the Orange County Fire Authority to order evacuation of approximately 40,000 residents and closure of thirteen schools. Read the full story...
Reprinted courtesy of Sean M. Sherlock, Snell & Wilmer
Mr. Sherlock may be contacted at ssherlock@swlaw.com

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2026 Construction Law Update

January 26, 2026 — Garret Murai - California Construction Law Blog
Happy New Year! Hope the holidays were enjoyable for you. During the first session of the California Legislature’s 2025-2026 legislative session, 2,350 bills were introduced, of which 917 bills made it to the Governor’s desk, and of which 794 bills were signed into law. For the design and construction industry the most important bills are a new claims resolution procedure for private works projects, a 5% retention cap on certain private works projects, and a number of changes to home improvement contract requirements. Read the full story...
Reprinted courtesy of Garret D. Murai, Nomos LLP
Mr. Murai may be contacted at gmurai@nomosllp.com

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Steel Cooling: Steel Costs Steadily Decline After Pandemic Price Shock

May 12, 2026 — Construction Executive
Steel prices have continued trending downward after several years of volatility, according to Gordian’s latest analysis based on RSMeans Data. After dramatic spikes during the pandemic-era supply disruptions, the market has gradually stabilized as supply chains improve and demand softens in some construction segments. However, selective volatility and tariff uncertainty continue to influence pricing across the sector. Key findings from the report include:

• Steel prices declining: The national average price of structural steel fell to about $2,343.93 per ton in January 2026, down 5.38% from the previous quarter and 7.18% year over year.
• Longer-term price correction: Steel costs have been trending downward since 2024 after earlier volatility driven by inflation, supply shortages and global demand swings.

Reprinted courtesy of Construction Executive, a publication of Associated Builders and Contractors. All rights reserved. Read the full story...

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House Passes ABC-Supported Permitting Reform Legislation

February 02, 2026 — ABC - Construction Executive
WASHINGTON, Dec. 18—Associated Builders and Contractors applauded the U.S. House of Representatives for passing two comprehensive, ABC-supported permitting reform bills: H.R. 3898, the Promoting Efficient Review for Modern Infrastructure Today Act, and H.R. 4776, the Standardizing Permitting and Expediting Economic Development Act. Reprinted courtesy of ABC, Construction Executive, a publication of Associated Builders and Contractors. All rights reserved. Read the full story...

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Limitations of Liability Provisions in Construction Contracts: A Means to Manage Risk and Limit Financial Exposure

June 23, 2026 — Ellen Chapelle, Richard Reizen, Hannah Batsche - Construction Executive
Taking a cue from architects and engineers, construction contractors have started inserting limitation of liability clauses in their construction contracts to manage risk and limit financial exposure. This article will address the specific risks that can be limited through an LOL, tips for negotiating the LOL terms with reluctant owners to cover those specific risks, how to limit unintended consequences of an LOL (such as relieving an insurer of its obligations to cover certain losses), and approaches to setting the amount of the liability cap in the LOL. Addressing Particular Risks An LOL can address a wide range of risks, including:

• Damages for delay
• Liability for non-conforming or defective work
• Liability for third-party bodily injury or property damage
• Liability excluded by a general liability policy (e.g., pollution and cyber liability)
• Liability related to intellectual property

Reprinted courtesy of Ellen Chapelle, Richard Reizen, Hannah Batsche, Construction Executive, a publication of Associated Builders and Contractors. All rights reserved. Read the full story...

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Ayushi Neogi Published in ADC Defense Comment on Arbitration in Evolving Plaintiff-Friendly Landscape

May 12, 2026 — Gordon Rees Scully Mansukhani
Gordon Rees Scully Mansukhani Senior Counsel Ayushi Neogi has authored an article in the Association of Defense Counsel of Northern California and Nevada’s Defense Comment magazine examining the shifting landscape of arbitration following the Ending Forced Arbitration Act. Titled “Compelling Arbitration in a Post-Ending Forced Arbitration Act, Plaintiff-Friendly Landscape,” the article analyzes how recent legislative changes are reshaping arbitration strategy, particularly as employees gain greater ability to bypass arbitration in certain claims. Neogi provides practical insight into how courts are responding and what this means for defense counsel navigating increasingly complex and plaintiff-friendly environments. Read the full story...
Reprinted courtesy of Gordon Rees Scully Mansukhani

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A Green Light for Housing? What Executive Order 14394 Means for Your Next Project

May 26, 2026 — Bennett Houck, Miranda Martinez & Byron Sarhangian - Snell & Wilmer
On March 13, 2026, President Trump signed Executive Order 14394, “Removing Regulatory Barriers to Affordable Home Construction” (the “Order”). The Order directs federal agencies to reduce regulatory burdens on residential development, streamline environmental permitting, and encourage state and local governments to adopt housing-friendly policies. The Order includes several key provisions that developers and homebuilders should be aware of moving forward. Key Provisions The Order targets four main areas: 1. Federal Environmental Regulations First, it directs the Secretary of the Army and Environmental Protection Agency (EPA) to revise permitting standards, including stormwater permits, wetlands permits under Section 404 of the Clean Water Act, and related construction-site requirements. The Order also targets energy-efficiency mandates for U.S. Department of Housing and Urban Development (HUD) and U.S. Department of Agriculture (USDA) financed housing. For developers and homebuilders, these revisions could reduce project delays and compliance costs associated with stormwater management, wetlands mitigation, and energy-efficiency upgrades, expenses that often add significant time and cost to residential development projects. Reprinted courtesy of Bennett Houck, Snell & Wilmer, Miranda Martinez, Snell & Wilmer and Byron Sarhangian, Snell & Wilmer Mr. Houck may be contacted at bhouck@swlaw.com Ms. Martinez may be contacted at mimartinez@swlaw.com Mr. Sarhangian may be contacted at bsarhangian@swlaw.com Read the full story...

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Are Robotic Coworkers Soon a Reality in Construction?

March 24, 2026 — Aarni Heiskanen - AEC Business
General-purpose humanoid robots are in the headlines, but is the hype justified? What’s the point of having a robot home assistant when it still needs a “guy behind the curtain” to control it remotely? Despite the challenges, robots, even those that look like humans, are seriously considered as future coworkers in business environments. According to the McKinsey report ‘Will embodied AI create robotic coworkers?‘ the idea that AI-powered robots will become general-purpose coworkers is grounded in real technological progress, but not an overnight reality. Read the full story...
Reprinted courtesy of Aarni Heiskanen, AEC Business
Mr. Heiskanen may be contacted at aec-business@aepartners.fi

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